Problem solved at last. It was the light relay behind the fuse cover/box. There is 5 relays on my 200tdi 2 large, 3 small. The 2 large relays (Upper left) 1 black, 1 red. Black is wiper delay relay. The red er well i dont know what that is! 3 smaller relays lower right., 2 yellow, 1 green The first yellow is starter, 2ed is Lights. 3ed green not sure. In the Haynes manual the light relay (Small yellow) is called a rear light relay. Ive been ignoring this relay of corse, Because i had a problem with the front lights not the rear. Must invest in a proper Land Rover manual!!!!! Thanks western and Gromit for your help